| A. | 17 |
| A.--- | 1 |
| Aach | 2 |
| Aadema | 4 |
| Aalbers | 1 |
| Aalbregtse | 11 |
| Aalcenius | 1 |
| Aalgrejtse | 1 |
| Aalston | 1 |
| Aapala | 1 |
| Aardema | 10 |
| Aardsma | 1 |
| Aarib | 1 |
| Aaron | 12 |
| Aarts | 2 |
| Aarup | 3 |
| Aase | 1 |
| Abair | 1 |
| Abar | 1 |
| Abbe | 1 |
| Abben | 1 |
| Abbes | 1 |
| Abbett | 1 |
| Abbey | 106 |
| Abbies | 1 |
| Abbot | 22 |
| Abbott | 198 |
| Abboud | 1 |
| Abbruzzese | 8 |
| Abbuszzese | 1 |
| Abby | 27 |
| Abdo | 4 |
| Abdow | 1 |
| Abdulabad | 2 |
| Abdullah | 1 |
| Abdul-Malik | 2 |
| Abdurasuleva | 1 |
| Abe | 1 |
| Abel | 59 |
| Abele | 2 |
| Abell | 31 |
| A'Bell | 2 |
| Abells | 1 |
| Abels | 10 |
| Abendroth | 9 |
| Abendshein | 4 |
| Abenroth | 1 |
| Abent | 3 |
| Aber | 3 |
| Aberdeen | 2 |
| Aberham | 1 |
| Aberle | 1 |
| Aberlin | 4 |
| Abernathy | 16 |
| Abernethy | 1 |
| Abesamis | 1 |
| Abfalter | 43 |
| Abin | 1 |
| Ablahani | 1 |
| Able | 13 |
| Able/Auble | 1 |
| Ablers | 1 |
| Ables | 2 |
| Ablett | 2 |
| Ablewhite | 1 |
| Abnet | 1 |
| Abney | 1 |
| Abood | 10 |
| Abott | 2 |
| Abouelmaity | 1 |
| Abou-Zeid | 1 |
| Abraham | 23 |
| Abrahams | 1 |
| Abrahamson | 2 |
| Abram | 3 |
| Abramczyk | 1 |
| Abrams | 24 |
| Abramson | 1 |
| Abran | 1 |
| Abrans | 1 |
| Abright | 2 |
| Abro | 1 |
| Abromes | 2 |
| Abronowitz-Hanks | 1 |
| Abshagen | 2 |
| Abshire | 4 |
| Abshirl | 1 |
| Abshner | 1 |
| Abson | 1 |
| Abu | 3 |
| Accles | 2 |
| Ace | 3 |
| Acheidt | 1 |
| Acher | 2 |
| Achers | 1 |
| Acheson | 4 |
| Achley | 1 |
| Achors | 3 |
| Achtenberg | 1 |
| Achterberg | 2 |
| Ackels | 5 |
| Acker | 84 |
| Ackerley | 1 |
| Ackerly | 2 |
| Ackerman | 36 |
| Ackerson | 93 |
| Ackert | 1 |
| Acket | 1 |
| Ackett | 4 |
| Ackette | 1 |
| Ackey | 1 |
| Ackles | 8 |
| Ackley | 266 |
| Ackley-Buffington | 1 |
| Ackly | 2 |
| Ackney | 1 |
| Ackons | 1 |
| Acllores | 1 |
| Acord | 2 |
| Acorn | 1 |
| Acou | 1 |
| Acquaro | 1 |
| Acre | 1 |
| Acrles | 1 |
| Action | 1 |
| Actkinson | 1 |
| Adado | 22 |
| Adair | 10 |
| Adam | 21 |
| Adama | 1 |
| Adame | 2 |
| Adamec | 1 |
| Adames | 1 |
| Adamo | 1 |
| Adamowksi | 1 |
| Adams | 806 |
| Adams? | 1 |
| Adamson | 7 |
| Adamstratt | 1 |
| Adamy | 3 |
| Aday | 1 |
| Adcock | 9 |
| Addams | 1 |
| Addamzdyk | 1 |
| Addang | 1 |
| Addie | 2 |
| Addington | 2 |
| Addink | 1 |
| Addis | 4 |
| Addison | 5 |
| Addiss | 3 |
| Addleman | 1 |
| Addy | 1 |
| Ade | 1 |
| Adeblue | 1 |
| Adee | 3 |
| Adell | 3 |
| Adelman | 15 |
| Adelsdorf | 1 |
| Adelson | 1 |
| Aderman | 2 |
| Adfalter | 1 |
| Adgage | 1 |
| Adgate | 24 |
| Adie | 2 |
| Adiorne | 3 |
| Adkins | 42 |
| Adkinson | 1 |
| Adkisson | 1 |
| Adlam | 1 |
| Adleman | 4 |
| Adler | 7 |
| Adlerman | 1 |
| Adlof | 1 |
| Admire | 10 |
| Adner | 1 |
| Adnnis | 1 |
| Adolf | 2 |
| Adolph | 4 |
| Adriance | 1 |
| Adrianson | 13 |
| Adrich | 2 |
| Adrion | 3 |
| Adsit | 9 |
| Adten | 1 |
| Adubert | 1 |
| Adyelotte | 1 |
| Adzitt | 1 |
| Aeitz | 1 |
| Aeriss | 1 |
| Aerntz | 1 |
| Aeschleman | 1 |
| Aeschliman | 4 |
| Aeskowiak | 1 |
| Aeury | 1 |
| Aeyne | 1 |
| Affeldt | 3 |
| Affholder | 5 |
| Affholter | 2 |
| Affre | 1 |
| Afichison | 1 |
| Afonso | 1 |
| Agababyan | 2 |
| Agar | 3 |
| Agard | 2 |
| Agee | 2 |
| Agen | 1 |
| Ager | 6 |
| Agile | 1 |
| Agin | 1 |
| Agiulera | 1 |
| Agler | 8 |
| Agner | 1 |
| Agnes | 1 |
| Agnew | 15 |
| Agostini | 8 |
| Agren | 2 |
| Aguayo | 1 |
| Ague | 1 |
| Agueros | 3 |
| Aguilar | 4 |
| Aguirre | 4 |
| Aguwa | 1 |
| Ahart | 1 |
| Ahelley | 1 |
| Ahern | 1 |
| Aherns | 1 |
| Ahhet | 1 |
| Ahigrim | 1 |
| Ahinster | 1 |
| Ahl | 1 |
| Ahlard | 1 |
| Ahlefeldt | 2 |
| Ahlem | 13 |
| Ahlems | 1 |
| Ahlern | 1 |
| Ahlers | 3 |
| Ahlms | 1 |
| Ahlm's | 1 |
| Ahmad | 2 |
| Ahn | 3 |
| Aho | 5 |
| AhPuck | 1 |
| Ahren | 1 |
| Ahrens | 6 |
| Aibright | 1 |
| Aicklen | 1 |
| Aid | 2 |
| Aiello | 1 |
| Aigner | 1 |
| Aiken | 33 |
| Aikens | 5 |
| Aikin | 16 |
| Aikins | 4 |
| Aildafer | 2 |
| Ailer | 1 |
| Ailesworth | 1 |
| Ailport | 4 |
| Ailsworth | 1 |
| Aingaer | 1 |
| Aingar | 13 |
| Ainger | 32 |
| Ainlton | 1 |
| Ainrs | 1 |
| Ainsden | 1 |
| Ainsile | 1 |
| Ainslee | 8 |
| Ainsley | 1 |
| Ainslie | 17 |
| Ainsworth | 53 |
| Ainsworth-Vaughn | 1 |
| Aire | 1 |
| Aisley | 1 |
| Aisover | 1 |
| Aiston | 4 |
| Aitch | 2 |
| Aitis | 1 |
| Aitken | 12 |
| Aitkins | 1 |
| Aiton | 10 |
| Aitterly | 1 |
| Aiuto | 1 |
| AIword | 1 |
| Ajar | 1 |
| Akadan | 1 |
| Akas | 4 |
| Akealy | 2 |
| Akeley | 3 |
| Aken | 3 |
| Akens | 2 |
| Aker | 3 |
| Akerley | 1 |
| Akerls | 1 |
| Akerly | 1 |
| Akers | 4 |
| Akin | 8 |
| Akini | 1 |
| Akins | 13 |
| Akley | 16 |
| Akman | 1 |
| Akright | 1 |
| Alackner | 1 |
| Alagna | 2 |
| Alagree | 1 |
| Alainz | 1 |
| Alama? | 1 |
| Alan | 2 |
| Alana | 1 |
| Alanis | 1 |
| Alaniz | 3 |
| Alard | 1 |
| Alario | 1 |
| Al-Ashari | 3 |
| Albain | 1 |
| Alban | 1 |
| Alband | 5 |
| Albani | 1 |
| Albaugh | 20 |
| Albee | 1 |
| Albeg | 1 |
| Alben | 1 |
| Alber | 11 |
| Albers | 7 |
| Albers-Felice | 1 |
| Alberson | 1 |
| Albert | 72 |
| Alberta | 11 |
| Alberton | 1 |
| Alberts | 13 |
| Albertson | 10 |
| Albin | 28 |
| Albinger | 1 |
| Albough | 1 |
| Albrandt | 2 |
| Albrecht | 8 |
| Albrectsen | 1 |
| Albreht | 1 |
| Albrich | 1 |
| Albright | 49 |
| Albrit | 2 |
| Albritton | 1 |
| Albro | 82 |
| Albrow | 1 |
| Albro-Weisenberg | 1 |
| Alcala | 1 |
| Alcantar | 3 |
| Alcaraz | 2 |
| Alcenius | 6 |
| Alchin | 10 |
| Alco | 1 |
| Alcock | 1 |
| Alcorn | 3 |
| Alcott | 7 |
| Alcron | 1 |
| Ald | 9 |
| Aldaco | 4 |
| Aldaffer | 3 |
| Alday | 1 |
| Aldeerman | 1 |
| Alden | 33 |
| Aldenbruck | 2 |
| Aldenbury | 2 |
| Alder | 6 |
| Alderich | 2 |
| Alderink | 16 |
| Alderman | 14 |
| Alders | 1 |
| Aldersen | 1 |
| Alderson | 21 |
| Alderton | 3 |
| Aldinger | 2 |
| Aldis | 1 |
| Aldoerffer | 1 |
| Aldons | 1 |
| Aldred | 1 |
| Aldredge | 1 |
| Aldrich | 307 |
| Aldrichm | 1 |
| Aldrick | 1 |
| Aldridge | 18 |
| Aldworth | 1 |
| Alebs_s | 1 |
| Aleckner | 1 |
| Aleekner | 1 |
| Alegria | 1 |
| Alen | 1 |
| Aleo | 31 |
| Alerander | 1 |
| Alerding | 1 |
| Alerkner | 1 |
| Alerton | 2 |
| Aleshire | 13 |
| Alessandro | 1 |
| Alexa | 8 |
| Alexan Der | 1 |
| Alexander | 130 |
| Alexanders | 2 |
| Alexander-Street | 1 |
| Alexender | 1 |
| Aley | 3 |
| Alf | 1 |
| Alfater | 1 |
| Alfonso | 8 |
| Alford | 32 |
| Alfred | 10 |
| Alfredeson | 1 |
| Alfredson | 1 |
| Alfrod | 1 |
| Algate | 6 |
| Algee | 1 |
| Alger | 42 |
| Algerose | 1 |
| Algers | 1 |
| Algoe | 6 |
| Alguire | 1 |
| Al-Hawari | 1 |
| Alhteen | 2 |
| Ali | 1 |
| Alice | 1 |
| Alicea | 2 |
| Alidami | 1 |
| Alien | 1 |
| Alioth | 1 |
| Alison | 1 |
| Alister | 2 |
| Alker | 1 |
| Alkin | 1 |
| Alkins | 2 |
| All | 2 |
| Allaben | 1 |
| Allaire | 1 |
| Allaman | 1 |
| Allan | 24 |
| Alland | 1 |
| Allard | 15 |
| Allarding | 4 |
| Allbaugh | 1 |
| Allbee | 6 |
| Allbright | 5 |
| Allcott | 3 |
| Allcutt | 1 |
| Alldaffer | 15 |
| Allderding | 1 |
| Alldering | 1 |
| Alldever | 1 |
| Alleart | 1 |
| Allem | 2 |
| Alleman | 32 |
| Allemeier | 2 |
| Allemeir | 1 |
| Allemen | 1 |
| Allen | 1341 |
| Allen/Ketchum ? | 1 |
| Allen-Bradley | 1 |
| Allenburger | 1 |
| Allending | 2 |
| Allendoffer | 1 |
| Allen-Haite | 1 |
| Allens | 2 |
| Allensworth | 8 |
| Alleo | 1 |
| Aller | 6 |
| Allerdine | 1 |
| Allerding | 54 |
| Allerdinig | 1 |
| Allerdoffer | 1 |
| Allerdorf | 1 |
| Allering | 1 |
| Allerton | 14 |
| Alleshouse | 4 |
| Alleva | 4 |
| Alley | 14 |
| Alleyn | 7 |
| Allgaier | 2 |
| Alli | 6 |
| Alligaier | 1 |
| Alling | 17 |
| Allingham | 2 |
| Allington | 1 |
| Allious | 1 |
| Allis | 28 |
| Allison | 64 |
| Allister | 1 |
| Alliston | 1 |
| Allman | 25 |
| Allmending | 1 |
| Allmendinger | 3 |
| Allmendinger Warner | 1 |
| Allmeroth | 2 |
| Allmond | 2 |
| Allne | 1 |
| Allner | 1 |
| Allore | 1 |
| Allored | 1 |
| Allport | 3 |
| Allred | 13 |
| Alls | 1 |
| Allshouse | 3 |
| Allspach | 1 |
| Allspaugh | 6 |
| Allswede | 13 |
| Allton | 5 |
| Alltright | 1 |
| Allured | 5 |
| Allva | 1 |
| Allwardt | 10 |
| Ally | 3 |
| Allyn | 37 |
| Allyns | 1 |
| Allyn's | 1 |
| Alman | 4 |
| Almanza | 2 |
| Almas | 1 |
| Almasy | 3 |
| Almeida | 2 |
| Almerian | 1 |
| Almo | 1 |
| Almon | 10 |
| Almond | 14 |
| Almondinger | 1 |
| Almont | 1 |
| Almose | 1 |
| Almroth | 1 |
| Almstead | 2 |
| Almus | 1 |
| Almy | 17 |
| Alney | 1 |
| Aloerd | 2 |
| Alois | 1 |
| Aloraucler | 1 |
| Aloro | 1 |
| Alpers | 1 |
| Alperson | 1 |
| Alpert | 1 |
| --alpert ? | 1 |
| Alpham | 2 |
| Alphin | 2 |
| Alpin | 1 |
| Alquier | 1 |
| Alquiere | 2 |
| Alrich | 3 |
| Alsbro | 6 |
| Alsbrow | 1 |
| Alsdorf | 1 |
| Alsessor | 1 |
| Alsey | 1 |
| Alshire | 1 |
| Alshoufani | 1 |
| Alsoner | 4 |
| Alsover | 18 |
| Alspach | 2 |
| Alspauch | 2 |
| Alspaugh | 31 |
| Alstaetler | 4 |
| Alstine | 1 |
| Alston | 2 |
| Alstott | 5 |
| Al-Sulimani | 2 |
| Alsup | 1 |
| Alsvoer | 1 |
| Alswer | 1 |
| Alt | 15 |
| Altaum | 1 |
| Altdoerffer | 1 |
| Alteman | 2 |
| Altemus | 2 |
| Altenberg | 1 |
| Altenbernt | 4 |
| Altenbrent | 4 |
| Altenbrunt | 1 |
| Altendorf | 1 |
| Altenhein | 5 |
| Alter | 1 |
| Althoff | 6 |
| Althouse | 38 |
| Althuto | 1 |
| Altine | 1 |
| Altken | 1 |
| Altland | 2 |
| Altman | 10 |
| Altobelli | 4 |
| Altoft | 7 |
| Altoft-Plowman | 1 |
| Alton | 26 |
| Altonaga | 1 |
| Altscheffel | 1 |
| Altshuler | 3 |
| Altstadt | 1 |
| Altvater | 1 |
| Alubowicz | 1 |
| Aludbowicz | 1 |
| Alumit | 4 |
| Alush | 2 |
| Alvarado | 6 |
| Alvard | 6 |
| Alvardo | 1 |
| Alvarez | 4 |
| Alverd | 4 |
| Alverson | 12 |
| Alviar | 1 |
| Alvira | 1 |
| Alvord | 17 |
| Alward | 22 |
| Alway | 4 |
| Alwes | 1 |
| Alwood | 34 |
| Alyea | 1 |
| Alyea Or Ayea ? | 1 |
| Alzman | 1 |
| Amabel | 1 |
| Amacher | 1 |
| Amaden | 1 |
| Amadeu | 1 |
| Amador | 2 |
| Amalley | 1 |
| Aman | 1 |
| Amanda | 1 |
| Amante | 2 |
| Amasal | 1 |
| Amba | 1 |
| Ambercrombie | 1 |
| Amberg | 5 |
| Ambeuhl | 1 |
| Amble | 2 |
| Ambler | 3 |
| Ambory | 1 |
| Ambrooi | 1 |
| Ambrook | 26 |
| Ambrose | 30 |
| Ambrosiani | 1 |
| Ambrosius | 1 |
| Ambs | 8 |
| Amburg | 2 |
| Amburgey | 1 |
| Amburgy | 1 |
| Amden | 1 |
| Amderson | 3 |
| Amdrews | 1 |
| Amdursky | 3 |
| Amedon | 1 |
| Ameel | 1 |
| Ament | 1 |
| Ameo | 1 |
| Amerman | 1 |
| Amermon | 2 |
| Amerosi | 1 |
| Ames | 336 |
| Amey | 2 |
| Ami | 1 |
| Amibon | 1 |
| A-Micael | 1 |
| Amick | 3 |
| Amiden | 1 |
| Amidon | 23 |
| Amiot | 1 |
| Amirante | 4 |
| Amis | 1 |
| Amiss | 2 |
| Amlani | 2 |
| Amley | 2 |
| Ammann | 1 |
| Ammarman | 4 |
| Ammen | 1 |
| Ammentorp | 2 |
| Ammerman | 15 |
| Ammick | 1 |
| Ammon | 28 |
| Ammons | 4 |
| Ammy | 1 |
| Amness | 1 |
| Amon | 35 |
| Amons | 2 |
| Amoor | 1 |
| Amos | 11 |
| Ampe | 1 |
| Ampey | 1 |
| Ampry | 1 |
| Ampsacher | 1 |
| Amray | 1 |
| Amron? | 1 |
| Amsbaugh | 11 |
| Amsbaugn | 1 |
| Amsbery | 1 |
| Amsboy | 1 |
| Amsbury | 2 |
| Amsdem | 1 |
| Amsden | 22 |
| Amsdill | 11 |
| Amsdon | 1 |
| Amsdursky | 1 |
| Amsler | 11 |
| Amson | 2 |
| Amspacher | 56 |
| Amspachers | 3 |
| Amspacker | 3 |
| Amspaucher | 2 |
| Amspocher | 2 |
| Amspocker | 2 |
| Amstutz | 2 |
| Amundsen | 17 |
| Amundson | 2 |
| Amy | 7 |
| Anabell | 1 |
| Anas | 1 |
| Anastasios | 1 |
| Anastos | 1 |
| Anbeau | 1 |
| Anble | 1 |
| Ancel | 4 |
| Ancheta | 1 |
| Anciola | 3 |
| Ancona | 4 |
| Anddrews | 1 |
| Andee | 1 |
| Andeen | 1 |
| Andeens | 1 |
| Anderberg | 2 |
| Anderdork | 1 |
| Anders | 25 |
| Andersen | 31 |
| Anderson | 775 |
| Anderson-Jopke | 1 |
| Andersons | 4 |
| Anderson's | 1 |
| Anders-Stout | 1 |
| Anderton | 6 |
| Andjewski | 2 |
| Andler | 13 |
| Andnos | 1 |
| Andorf | 2 |
| Andorff | 5 |
| Andos | 1 |
| Andrachik | 2 |
| Andre | 33 |
| Andrea | 2 |
| Andreas | 38 |
| Andreasen | 1 |
| Andreau | 5 |
| Andreau? | 1 |
| Andree | 3 |
| Andreichuk | 1 |
| Andrek | 3 |
| Andres | 17 |
| Andreson | 2 |
| Andress | 6 |
| Andrew | 40 |
| Andrews | 620 |
| Andrews (Andrus?) | 1 |
| Andrews(Andrus?) | 1 |
| Andrezjewski | 1 |
| Andridge | 1 |
| Andriestitis | 1 |
| Andrievs | 1 |
| Andris | 2 |
| Andrist | 2 |
| Andritsakes | 1 |
| Andrjewski | 2 |
| Androf | 1 |
| Andros | 11 |
| Andross | 1 |
| Andrrews | 1 |
| Andrsky | 1 |
| Andrson | 1 |
| Andrus | 136 |
| Andrus (Andrews?) | 1 |
| Andrus(Andrews?) | 1 |
| Andruses | 2 |
| Andruss | 1 |
| Andrustitis | 1 |
| Andure | 1 |
| Andurn | 1 |
| Aneil | 1 |
| Aneleus | 1 |
| Anfinsen | 1 |
| Angas | 4 |
| Ange | 1 |
| Angedan | 1 |
| Angel | 25 |
| Angelich | 1 |
| Angelino | 1 |
| Angell | 38 |
| Angelosanto | 1 |
| Anger | 11 |
| Angerer | 3 |
| Angeststman | 1 |
| Angevine | 8 |
| Angld | 1 |
| Angle | 8 |
| Anglemeyer | 2 |
| Anglemyer | 7 |
| Anglin | 2 |
| Angott | 1 |
| Angst | 5 |
| Angstman | 2 |
| Anguiano | 1 |
| Anguing | 1 |
| Angus | 15 |
| Angus Association members | 1 |
| Angus Preview Show | 1 |
| Angwin | 2 |
| Anibal | 7 |
| Anibel | 1 |
| Anichs | 1 |
| Anicola | 3 |
| Animikaan | 2 |
| Animikiva | 2 |
| Animikwan | 2 |
| Anis | 1 |
| Ankenbauer | 1 |
| Ankeny | 1 |
| Anker | 4 |
| Ankli | 1 |
| Ankney | 21 |
| Ankrom | 1 |
| Anlen | 1 |
| Annabel | 2 |
| Annabil | 3 |
| Annable | 1 |
| Anneke | 2 |
| Annes | 6 |
| Anness | 12 |
| Annett | 2 |
| Anni | 1 |
| Annibal | 1 |
| Anning | 1 |
| Annis | 89 |
| Annison | 2 |
| Annon | 1 |
| Anns | 1 |
| Anote | 1 |
| Anquilli | 1 |
| Ansail | 1 |
| Ansara | 1 |
| Anscomb | 1 |
| Ansden | 2 |
| Anselbrow | 1 |
| Ansell | 5 |
| Anselm | 2 |
| Anselmo | 2 |
| Anseltine | 1 |
| Ansett | 1 |
| Ansley | 4 |
| Anslow | 1 |
| --anso-? | 1 |
| Anson | 101 |
| Anspach | 13 |
| Anspacher | 2 |
| Anspaugh | 1 |
| Anspringer | 1 |
| Ansted | 2 |
| Antal | 2 |
| Antcliff | 28 |
| Anteau | 2 |
| Antes | 8 |
| Anthearn | 1 |
| Antherholt | 1 |
| Anthes | 1 |
| Anthony | 65 |
| Anthrsons | 1 |
| Antico | 5 |
| Antilla | 2 |
| Antinette | 1 |
| Antinoja | 1 |
| Antis | 3 |
| Antisdal | 1 |
| Antisdell | 1 |
| Antisell | 1 |
| Antol | 2 |
| Anton | 6 |
| Antone | 1 |
| Antonesen | 1 |
| Antonia | 1 |
| Antonides | 2 |
| Antonio | 1 |
| Antonsen | 3 |
| Antonson | 1 |
| Antrican | 1 |
| Anttila | 1 |
| Antwerp | 1 |
| Anuchick | 2 |
| Anus | 1 |
| Anwar | 1 |
| Anwaste | 1 |
| Anway | 12 |
| Anxter ? | 1 |
| Anyanwu | 1 |
| Anzaldna | 1 |
| Anzaldua | 27 |
| Anzaldum | 1 |
| Anzivino | 1 |
| Anzivion | 1 |
| Apace | 2 |
| Apgar | 2 |
| Apirill | 1 |
| Aplin | 1 |
| Aplms | 1 |
| Apol | 2 |
| Apollonio | 1 |
| Apostol | 2 |
| App | 1 |
| Appelman | 22 |
| Appenzeller | 1 |
| Applby | 1 |
| Apple | 8 |
| Applebaum | 3 |
| Applebee | 1 |
| Appleby | 7 |
| Appledorn | 1 |
| Applegate | 3 |
| Appleman | 8 |
| Appleseed | 1 |
| Appleton | 36 |
| Appleyard | 2 |
| Applin | 2 |
| Appling | 1 |
| Appold | 1 |
| Appoleman | 1 |
| Apps | 3 |
| Apriil | 1 |
| April | 2 |
| Aprill | 10 |
| Apsey | 42 |
| Aqard | 1 |
| Aquilea | 1 |
| Aquino | 1 |
| Ara | 1 |
| Arakelian | 3 |
| Arakelova | 1 |
| Arambula | 3 |
| Aranda | 1 |
| Arasim | 2 |
| Aray | 1 |
| Arazolla | 1 |
| Arbaugh | 16 |
| Arboor | 1 |
| Arbour | 9 |
| Arbtress | 1 |
| Arbuckle | 2 |
| Arcambel | 1 |
| Arce | 1 |
| Arch | 2 |
| Archambault | 11 |
| Archambeau | 6 |
| Archambeautt | 1 |
| Archamblault | 1 |
| Archart | 1 |
| Archbald | 2 |
| Archbold | 4 |
| Archer | 111 |
| Archey | 2 |
| Archibald | 5 |
| Archie | 1 |
| Archuletz | 1 |
| Arcker | 1 |
| Ardelean | 2 |
| Ardis | 10 |
| Ardister | 1 |
| Ardley | 1 |
| Arechar | 1 |
| Arehart | 2 |
| Aren | 1 |
| Arenas | 1 |
| Arend | 12 |
| Arendsen | 1 |
| Arendt | 2 |
| Arens | 19 |
| Areny | 1 |
| Aretis | 1 |
| Arevalo | 4 |
| Arey | 3 |
| Arganbright | 1 |
| Argenbright | 1 |
| Argensinger | 4 |
| Argersing | 2 |
| Argersinger | 4 |
| Argo | 1 |
| Argumedo | 1 |
| Argumedo-DeLaTorre | 1 |
| Argursinger | 2 |
| Arhema | 1 |
| Ari | 2 |
| Arias | 1 |
| Aried | 1 |
| Aries | 2 |
| Arines ? | 1 |
| Aris | 3 |
| Ariss | 7 |
| Arity | 2 |
| Arizola | 2 |
| Arkeey | 1 |
| Arkins | 1 |
| Arksey | 20 |
| Arlnold | 1 |
| Arlowsky | 1 |
| Arlt | 1 |
| Arly | 1 |
| Arm | 2 |
| Armagost | 1 |
| Arman | 5 |
| Armantrout | 4 |
| Armas | 2 |
| Armbrect | 1 |
| Armbrook | 1 |
| Armbruster | 3 |
| Armbrustmacher | 8 |
| Armbrustmacker | 1 |
| Armengot | 1 |
| Arment | 2 |
| Armentrout | 2 |
| Armer | 1 |
| Armes | 1 |
| Armfield | 1 |
| Armintrout | 1 |
| Armiss | 1 |
| Armisted | 1 |
| Armitage | 8 |
| Armon | 1 |
| Armorer | 1 |
| Armour | 3 |
| Arms | 16 |
| Armsbury | 1 |
| Armspacher | 1 |
| Armstead | 8 |
| Armstrong | 282 |
| Arndt | 53 |
| Arnell | 1 |
| Arner | 10 |
| Arneric | 4 |
| Arnes | 2 |
| Arnesen | 4 |
| Arneson | 1 |
| Arnett | 27 |
| Arnheim | 1 |
| Arnie | 2 |
| Arning | 1 |
| Arnis | 1 |
| Arnitt | 1 |
| Arnn | 3 |
| Arnnold | 1 |
| Arnold | 555 |
| Arnold-Grant | 1 |
| Arnolds | 3 |
| Arnonr | 1 |
| Arnor | 1 |
| Arnos | 2 |
| Arnot | 3 |
| Arnott | 3 |
| Arnovits | 4 |
| Arnstein | 3 |
| Arnston | 5 |
| Arnstrong | 1 |
| Arntson | 13 |
| Arntston | 1 |
| Arntz | 22 |
| Aroito | 1 |
| Arold | 1 |
| Aronhelm | 1 |
| Aronstein | 7 |
| Arp | 1 |
| Arpe | 2 |
| Arpino | 4 |
| Arps | 2 |
| Arquette | 3 |
| Arrand | 1 |
| Arrants | 3 |
| Arras | 4 |
| Array | 1 |
| Arredoho | 1 |
| Arredondo | 3 |
| Arregiun | 1 |
| Arreguin | 5 |
| Arrell | 1 |
| Arrellano | 1 |
| Arrendondo | 2 |
| Arrequin | 2 |
| Arrington | 8 |
| Arris | 2 |
| Arriss | 1 |
| Arritt | 2 |
| Arrol | 1 |
| Arroll | 1 |
| Arrowsmith | 2 |
| Arsenault | 2 |
| Arskowak | 1 |
| Arteman | 1 |
| Arth | 2 |
| Arther | 1 |
| Artherholt | 2 |
| Arthes | 1 |
| Arthur | 28 |
| Arthur ? | 1 |
| Artiaga | 1 |
| Artibee | 5 |
| Arties | 1 |
| Artiges | 3 |
| Artin | 1 |
| Artinian | 1 |
| Artis | 3 |
| Artman | 2 |
| Arton | 1 |
| Artz | 13 |
| Arutunyan | 1 |
| Arva | 4 |
| Arvanetis | 1 |
| Arvanites | 3 |
| Arven | 1 |
| Arvidson | 4 |
| Arvilla | 1 |
| Arwinger | 1 |
| Arwood | 6 |
| Arzberger | 1 |
| Arzt | 1 |
| Asakevich | 1 |
| Asaro | 12 |
| Asborn | 1 |
| Asbury | 4 |
| Ascher | 1 |
| Aschim | 1 |
| Aseline | 2 |
| Aseltin | 1 |
| Aseltine | 61 |
| Aseltyne | 1 |
| Asenath | 1 |
| Asetline | 1 |
| Ash | 58 |
| Ash-Allen | 1 |
| Ashalter | 2 |
| Ashbacher | 2 |
| Ashbauge | 2 |
| Ashbaugh | 5 |
| Ashbay | 1 |
| Ashbridge | 1 |
| Ashby | 14 |
| Ashcraft | 10 |
| Ashcroft | 2 |
| Ashdon | 2 |
| Ashdown | 7 |
| Ashdowne | 3 |
| Ashe | 3 |
| Ashebocker | 1 |
| Ashenhurst | 3 |
| Asher | 8 |
| Asherton | 1 |
| Ashes | 1 |
| Ashford | 3 |
| Ashington | 1 |
| Ashley | 336 |
| Ashleys | 1 |
| Ashly | 2 |
| Ashmon | 1 |
| Ashmun | 1 |
| Ashton | 17 |
| Ashworth | 19 |
| Asiel | 2 |
| Aske | 1 |
| Asken | 1 |
| Askew | 6 |
| Askin | 1 |
| Askren | 1 |
| Asleson | 3 |
| Asletine | 1 |
| Asley | 1 |
| Aslin | 2 |
| Asolver | 1 |
| Aspala | 2 |
| Aspenall | 1 |
| Aspenb | 1 |
| Aspenheim | 1 |
| Aspenson | 1 |
| Aspij | 1 |
| Aspin | 8 |
| Aspinall | 10 |
| Assaff | 1 |
| Asseff | 2 |
| Asseltine | 1 |
| Assenat | 1 |
| Asseton | 1 |
| Assid | 2 |
| Assiff | 2 |
| Ast | 1 |
| Astalos | 1 |
| Astlen | 1 |
| Astley | 73 |
| Aston | 13 |
| Astor | 2 |
| Astorino | 1 |
| Astran | 3 |
| Astras | 3 |
| Asttey | 1 |
| Asuncion | 1 |
| Asuss | 2 |
| Atalalo | 1 |
| Atanasoff | 1 |
| Atayan | 4 |
| Atchinson | 6 |
| Atchison | 13 |
| Ateequi | 1 |
| Aten | 15 |
| Atewart | 1 |
| Atha | 2 |
| Athanas | 1 |
| Athanassopulos | 1 |
| Atheam | 2 |
| Athearn | 3 |
| Athem | 2 |
| Atheran | 1 |
| Atherholt | 8 |
| Athern | 2 |
| Atherton | 58 |
| Athey | 2 |
| Athrew | 2 |
| Atihison | 1 |
| Atkin | 2 |
| Atkins | 66 |
| Atkinson | 50 |
| Atlas | 1 |
| Atlee | 5 |
| Atlin | 1 |
| Atloff | 1 |
| Atman | 1 |
| Atmore | 3 |
| Aton | 1 |
| Atridge | 1 |
| Attaway | 1 |
| Atteaux | 1 |
| Attherton | 3 |
| Atthouse | 1 |
| Attleberger | 7 |
| Attney | 1 |
| Attnip | 1 |
| Atto | 1 |
| Attwell | 3 |
| Attwood | 1 |
| Atwalt | 1 |
| Atwater | 7 |
| Atwell | 28 |
| Atwood | 56 |
| Atyes | 1 |
| Atylor | 1 |
| Aube | 1 |
| Aubel | 1 |
| Aubertin | 3 |
| Aubil | 12 |
| Aubin | 5 |
| Auble | 13 |
| Auble/Able | 1 |
| Aubrey | 10 |
| Aubright | 1 |
| Aubry | 10 |
| Aubuchon | 4 |
| Auchenpaugh | 2 |
| Auchmuty | 1 |
| Auchtung | 1 |
| Auchunbaugh | 1 |
| Aucland | 1 |
| Audas | 1 |
| Auden | 1 |
| Audette | 2 |
| Audler | 1 |
| Audre | 1 |
| Auer | 5 |
| Auerbach | 3 |
| Aufrecht | 2 |
| Aufright | 3 |
| Auge | 8 |
| Augell | 2 |
| Augenstein | 3 |
| Augenstein-Gee | 1 |
| Auger | 1 |
| Augerer | 2 |
| Auget | 1 |
| Aughton | 5 |
| Augnst | 3 |
| Augrum | 1 |
| Augsberry | 1 |
| Augspurger | 2 |
| Augst | 23 |
| Augus | 2 |
| August | 9 |
| Augusta | 1 |
| Augustine | 62 |
| Augustynski | 1 |
| Auibal | 1 |
| Auilar | 1 |
| Aukerman | 5 |
| Aukney | 2 |
| Aulbert | 2 |
| Auld | 13 |
| Auldridge | 1 |
| Aulds | 1 |
| Aulerich | 1 |
| Aulkand | 1 |
| Aull | 2 |
| Aulls | 63 |
| Aulls/Auls | 1 |
| Auls | 3 |
| Aulsbro | 2 |
| Aulspaugh | 4 |
| Ault | 5 |
| Aulthouse | 1 |
| Aultine | 1 |
| Aultman | 9 |
| Aumaugher | 3 |
| Aumick | 17 |
| Aumspacher | 1 |
| Aumspaugh | 1 |
| Aunger | 1 |
| Aungst | 70 |
| Aungst-Meyers | 1 |
| Aunnick | 1 |
| Auor | 1 |
| Aurand | 3 |
| Auraud | 1 |
| Aurer | 1 |
| Aurris | 1 |
| Ausbun | 1 |
| Ausbury | 2 |
| Ausden | 1 |
| Aushouse | 1 |
| Auson | 1 |
| Austan | 1 |
| Austen | 14 |
| Auster | 1 |
| Austiin | 1 |
| Austin | 554 |
| Austine | 1 |
| Austin-Lockton | 1 |
| Austins | 1 |
| Auston | 1 |
| Auten | 6 |
| Authier | 3 |
| Autio | 1 |
| Auton | 1 |
| Autretsch | 1 |
| Autrey | 1 |
| Autst | 1 |
| Auvenshine | 8 |
| Auvinen | 3 |
| Auxter | 7 |
| Avalos | 2 |
| Avann | 6 |
| Avant | 2 |
| Avary | 1 |
| Ave | 1 |
| Aven | 5 |
| Aver | 4 |
| Averall | 2 |
| Averhill | 1 |
| Averil | 2 |
| Averill | 30 |
| Averilll | 1 |
| Averim | 1 |
| Averin | 1 |
| Avery | 273 |
| Aves | 41 |
| Avey | 1 |
| Avida | 1 |
| Avignone | 1 |
| Aviles | 2 |
| Aville | 1 |
| Avis | 5 |
| Avitable | 2 |
| Avoury | 1 |
| Avuill | 1 |
| Awalt | 3 |
| Awes | 3 |
| Awrey | 4 |
| Axam | 1 |
| Axar | 1 |
| Axdell | 1 |
| Axelrod | 1 |
| Axelson | 1 |
| Axford | 5 |
| Axine | 1 |
| Axline | 3 |
| Axmier | 1 |
| Axsom | 1 |
| Axtel | 2 |
| Axtell | 53 |
| Ayadi | 2 |
| Ayala | 2 |
| Ayars | 7 |
| Aydelotte | 2 |
| Ayen | 1 |
| Ayer | 19 |
| Ayers | 77 |
| Ayf | 1 |
| Aylesworth | 8 |
| Ayling | 7 |
| Aylo | 1 |
| Aylor | 4 |
| Aylsworth | 3 |
| Aylworth | 1 |
| Aymond | 1 |
| Aymor | 2 |
| Aynoa | 2 |
| Ayotte | 23 |
| Ayre | 1 |
| Ayree | 2 |
| Ayres | 33 |
| Ayubi | 1 |
| Azaltine | 1 |
| Azcui | 2 |
| Azelborn | 3 |
| Azeltine | 19 |
| Azelton | 8 |
| Azine | 1 |
| Azusenis | 2 |
| Azzi | 1 |
| Azzinaro | 1 |